A Lightweight Engine Mount for Vibration and Noise Absorption

Abstract

The invention discloses a light-weight engine mount for reducing vibration and noise absorption, which comprises a casing and an inner core located in the casing. The lower plate body is respectively connected with the inner top surface and the inner bottom surface of the shell, and the upper plate body includes a first layer plate, a first sandwich layer and a second layer plate connected in sequence from top to bottom, and the first sandwich layer is in the form of a first layer. Honeycomb shape, its longitudinal section is formed by connecting multiple rows of regular hexagons in sequence from top to bottom, each regular hexagon is provided with a circle connected to the three diagonals of the regular hexagon, and each regular six The diameter of the circle in the polygon gradually increases from top to bottom. When the engine is at idle speed and the vibration amplitude is large, the upper plate body can produce a large damping effect to absorb the vibration generated by the engine, and has a gradient to absorb the vibration. function. In order to overcome the problem that traditional rubber can only provide a small damping effect, it has a better vibration reduction effect.

Description

technical field [0001] The invention relates to a lightweight engine mount for reducing vibration and absorbing noise. Background technique [0002] A car is a vibrating body with multiple degrees of freedom, and vibrates under the action of various vibration sources. The engine is one of the sources of vibration. It is installed on the frame through the suspension device. The suspension device is both an elastic element and a vibration damping device. Its characteristics are related to the vibration and noise of the whole vehicle, and thus directly related to the riding experience of passengers. Reasonable suspension can not only reduce vibration, reduce noise and improve ride comfort, but also improve the life of parts, components and the whole vehicle. Traditional automobiles are generally equipped with rubber mounts. Although they have the characteristics of simple structure and low manufacturing cost, the characteristic curves of dynamic stiffness and damping loss angl...

AI Technical Summary

Problems solved by technology

Traditional automobiles are generally equipped with rubber mounts. Although they have the characteristics of simple structure and low manufacturing cost, the characteristic curves of dynamic stiffness and damping loss angle basically do not change with the excitation frequency, that is, the upper limit of the vibration reduction effect of rubber mounts is relatively low. Low, it is difficult to meet the requirements of modern passengers for ride comfort, and the vibration damping effect of the rubber suspension will drop sharply after long-term use, and at the same time, it will generate noise, which will affect the ride experience

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